An acute randomized crossover trial comparing the effects of the whey hydrolysate, whey protein concentrate and placebo (still flavored water) on appetite and energy intake in older adults. Both low-dose whey-derived treatment and placebo will be administered 30 minutes prior to breakfast and lunch meals. Moreover, ghrelin secretion and activity will be monitored throughout the morning until the lunch time. Appetite will be assessed through visual analogue scale questionnaires.
Age range
60 Years
Sex
ALL
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Pre-meal and changes in Composite Appetite Score
Timeframe: 8.5 hours: fasting, before breakfast, at 30, 60, 120, 180 and 210 minutes after ingestion of supplement and a standard meal; at 30, 60, 120 and 180 minutes following ingestion of supplement and lunch test meal. And immediately after each test meal.
Energy intake (EI) (kilocalories)
Timeframe: 24 hours from breakfast, lunch and dinner meals, as well as from evening and night from provided snackbox.